Cadmium(II) complex with (1'H-[2,2']biimidazoly-1-YL)-acetic acid: Synthesis, crystal structure, and luminescence

A new cadmium(II) complex with (1'H-[2,2']Biimidazoly-1-yl)-acetic acid (HBDAC) [Cd(BDAC)(2)(H2O)(2)]center dot H2O is synthesized and structurally characterized, which crystallizes in the monoclinic system, space group P2(1)/c, a = 8.465(3) , b = 14.164(5) , c = 11.294(3) , alpha = 90A degrees, beta = 127.405(17)A degrees, gamma = 90A degrees, Z = 2. The [Cd(BDAC)(2)(H2O)(2)]center dot H2O units are further bridged by O-HaEuro broken vertical bar O, N-HaEuro broken vertical bar O, C-HaEuro broken vertical bar O hydrogen bonds, pi-pi stacking and C-OaEuro broken vertical bar pi interactions, generating a three-dimensional supramolecular structure. In addition, luminescence measurements reveal that complex 1 exhibits strong fluorescent emission in the solid state at room temperature.